This appears to match the tray seen with the JewelRay sets found in the 1950s Clayton Mayers catalogue, described as "comb tray with cut glory star". Although shown in the CM catalogue, the actual glassmaker is still unknown, as CM were distributors not glassmakers.
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It was suggested this might be a variant of the Libochovice 1860 series pattern but closer inspection shows multiple differences which leave that suggestion in doubt.
Dimensions (courtesy of LinzH on the GMB)
Tray - 30cm x 20cm x 3cm
Powder Bowl - 9cm diameter at widest point, 6cm at base. Stands 10.5cm tall.
Candlestick - 7.5cm across base, 3.5cm across top. Stands 12cm tall
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